Search Results - (Author, Cooperation:E. Turak)

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  1. 1
    Staff View
    Publication Date:
    2013-01-19
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Alleles ; *Biodiversity ; *Environmental Monitoring ; Genetic Variation ; Population
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Turak, E. ; Talent, R. ; Sunnucks, P. ; Hales, D. F.
    Springer
    Published 1998
    Staff View
    ISSN:
    1570-7458
    Keywords:
    aphids ; Sitobion ; population ; chromosomal race ; mean relative growth rate ; temperature
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract Chromosomal races of the aphid Sitobion miscanthi (Takahashi), and a closely-related species S. near fragariae (Aphididae: Macrosiphini) show seasonal differences in abundance in eastern Australia. We tested whether this was related to differences in temperature response, using controlled laboratory conditions. Intrinsic rate of increase, rm, mean relative growth rate (MRGR), and longevity were compared at different temperatures, and rates of increase were compared outdoors under ambient conditions. Using laboratory data, we simulated population growth, for comparison with outdoor populations. There were significant differences in responses to temperature regimes both in the laboratory and outdoors. Outdoor populations fell well short of predicted sizes. S. miscanthi (2n=18) showed evidence of adaptation to warmer conditions. In contrast, S. nr fragariae showed consistent evidence for adaptation to cooler conditions, and S. miscanthi 2n=17 was approximately intermediate. These data indicate that temperature responses are important in the ecology, evolution and pest status of S. miscanthi clones and S. nr fragariae in Australia.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses